500MHz six-channel bi-dir multiplexers switch analogue or digital Leave a comment

Inside the half, referred to as NMUX27518 (or NMUX27518-Q100 for the automotive model), there are six change-over switches managed as two blocks of three by two management pads, plus an over-riding chip allow.

The switches can function with indicators wherever within the 0V to Vcc vary.

Off-state cross-talk is often -58dB, and typical on-resistance is between 8 and 31Ω relying on provide voltage.

Control inputs are suitable with 1.8V logic indicators (and backward-compatible with 2.5 and three.3V logic) even when the system is powered from 3.3V.

“Operating control pins at a lower voltage than the device operating voltage will increase the device supply current,” identified the corporate. Max provide present is normally ~1μA with static inputs (~4nA typ), rising by a most of 9μA for every of the three management inputs which might be held at 1.8V if the provision is 3.3V.

If energy is faraway from the IC, all the management inputs and sign input-outputs turn out to be high-impedance to keep away from loading surrounding and analogue circuits – as a part of this, enter and input-output ESD diodes to not have a connection to Vcc. JESD 78 Class II latch-up efficiency is >100mA.

Operation is throughout -40 to +125°C, and there are two package deal choices: 4.4mm huge 24pad TSSOP or a 4 x 4mm thermally-enhanced 24 pad QFN 24.

The firm sees completely different roles for AEC-Q100 grade 1 automotive model and the usual model.

It envisages -100 (automotive) sorts switching quad-SPI bus digital indicators between two recollections in safety-critical car management items, corresponding to for driver help or telematics.

Conversely, it expects the usual IC to route audio and video indicators in notebooks, tablets, motherboards and rack servers.

For quicker indicators, Toshiba has a 26.2GHz (to -3dB) four-channel 2:1 bi-directional multiplexer.